He graduated the Electrotechnical Institute in Bucharest (1925-1929), then the Faculty of Sciences in Paris, where he received his doctorate (1934), prepared under the leadership of A. Cotton. His doctoral thesis, Recherche sur le spectre de fluorescence et d'absorption des vapeurs de Iodine became a reference work in the field.
In 1948 Ion I. Agârbiceanu became professor at the Petroleum and Gas Institute in Bucharest. Since 1951 he was professor at the Faculty of Mathematics and Physics, University of Bucharest, then he was Head of Department of Physics at the Bucharest Polytechnic Institute (1955-1971). He was Romania's representative to the International Union of Pure and Applied Physics and the European Group for Atomic Spectroscopy. On 21 March 1963, he was elected member of the Romanian Academy.
In 1956, Prof. Dr. Ion I. Agârbiceanu organized at the Institute of Atomic Physics in Bucharest, the "Optical Methods in Nuclear Physics" Laboratory, with outstanding results in the research on atomic hyperfine and isotopic structures, magneto-optical resonance, and thin dielectric layers.
The Agârbiceanu Laser (image from Wikipedia)
Under his leadership was realized in 1962 the first gas (helium-neon) laser with infrared radiation, after his original design. By focusing the laser beam produced by monochromatic light, there are obtained enormous radiation densities on very small surfaces.
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